<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script src="./test.js"></script>
  <script src="./手写实现问题.js"></script>
  <script>
    let m = {}
    let n = {child: a}
    m.parent = b
    console.log(111, circular(n));
    // JSON.stringify(b)
    // console.log(JSON.decycle(b))
    // console.log(JSON.stringify(b))
  </script>
</body>
</html>